 /*******************************************************************************
  * Copyright (c) 2006, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.ui.internal.navigator.filters;

 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.ui.internal.navigator.CommonNavigatorMessages;
 import org.eclipse.ui.navigator.INavigatorContentDescriptor;
 import org.eclipse.ui.navigator.INavigatorContentService;

 /**
  * @since 3.2
  *
  */
 public class ContentExtensionsTab extends CustomizationTab {

     protected ContentExtensionsTab(Composite parent,
             INavigatorContentService aContentService) {
         super(parent, aContentService);
         createControl();

     }

     private void createControl() {
                 
         createInstructionsLabel(CommonNavigatorMessages.CommonFilterSelectionDialog_Select_the_available_extensions);
         
         createTable();

         getTableViewer().setContentProvider(new ContentDescriptorContentProvider());
         getTableViewer().setLabelProvider(new CommonFilterLabelProvider());
         getTableViewer().setInput(getContentService());

         updateCheckedState();

     }


     private void updateCheckedState() {
         INavigatorContentDescriptor[] visibleExtensions = getContentService()
                 .getVisibleExtensions();
         for (int i = 0; i < visibleExtensions.length; i++) {
             if (getContentService().isActive(visibleExtensions[i].getId())) {
                 getTableViewer().setChecked(visibleExtensions[i], true);
             }
         }

     }

 }

